Charge-forming device.



F. E. RUPRIGHT. CHARGE FORMING DEVICE. APPLICATION FILED AIR.A I3. 1914A Patented May 22', 1917.

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Attorneys UTE STA i; ran

FREDERICK E. RUPRIGI-IT, OF INTERLOCHEN, MICHIGAN, ASSIGNOR F CNE-HALF T0 WILLIS PENNINGTON, OF INTERLOCHEN, MICHIGAN.

CHARGE-FORMING DEVICE.

Original application filed February 17, 1913, Serial No. 749,041.

T0 all whom t may concern.'

Be it known that l, FREDERICK E. RUP- RIGHT, a citizen of the United States, resid-l ing at lnterlochen, in the county of Grand Traverse and State of Michigan, have invented a new and useful Charge-Forming Device, of which the following is a specification.

The device forming the subject matter of 1o this application is an internal combustion engine, and one object of the invention is to provide an engine of this sort, in which two cylinders are located upon opposite sides of the crank shaft and coact to impart rotation thereto, thereby increasing the power of the engine.

Another object of the invention is to provide an internal combustion engine which will operate without jarring and in a balanced condition.

A further object of the invention is to provide novel means for timing the explosion and for controlling the exhaust. The invention aims to providenovel means for controlling and regulating the character of the explosive mixture.

It is within the scope of the invention to improve generally and to enhance the utility of, devices of that type to which the present invention appertains. j

With the above and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings Figure 1 shows the invention in side elevation;

Fig. 2 is a side elevation, the view point in Fig. 2 being 900 remote from the view point in Fig. 1;

Fig. 3 is a longitudinal section of the cylinders, parts appearing in elevation;

Fig. 4 is a sectional detail showing the mixing chamber and associated parts.

The engine herein disclosed may be used as a stationary structure or as a marine prime mover, and may be disposed either horizontally or vertically. In the following Specification of Letters Patent.

Patented May 22, 1917.

Divided and this application iiled April 13,

Serial No. 831,598.

description, it will be presupposed that the engine is placed vertically as shown in the drawings, the terms upper, lower and the like being selected accordingly.

In carrying out the invention there is pro vided an upper cylinder 1 and a lower cylin der 2 united by a tubular connection 3 as will be understood best fromFig. 3 of the drawings. Formed upon the lower end of the lower cylinder 2 is a frame A coperatingrwith a base 5 to form bearings 6 in which is journaled for rotation a shaft '7 carrying a fly wheel 8 and provided in its intermediate portion with a crank 9. A pitman l() is connected with the crank 9 and is pivoted to a piston head l1 which operates in the lower cylinder 2, there being` a piston head 12 in the upper cylinder 1, the piston heads 11 and 12 being connected by a rod 14 mounted to slide in the tubular connection 3 betweenthe cylinders. i The rod 14 may be surrounded by packing rings 15 coperating with the tubular connection 3.

To the cylinders 1 and 2 are secured guides 16 in which is mounted to reciprocate a rod 17 provided at its lower end with an eccentric strap 18 surrounding an ec centric 19 secured to the shaft 7. The lower end ofthe upper cylinder 1 is provided with an exhaust port 2O and the upper end of the lower cylinder 2 is provided with an exhaust port 21. The exhaust port 2O is controlled by a spring-closed valve 22 and the exhaust port 21`is controlled by a similar valve Secured to the rod 17 'and projecting in wardly therefrom are arms 24:, adapted re spectively to engage successively with the valves 22 and 23. Secured to the cylinders 1 and 2 are brackets 25 constituting fulcrums for levers 26. lnwardly projecting fingers 27 are mounted to slide upon the rod 17, compression springs 28 abutting against the fingers 27 and abutting against the superposed guides 16. As indicated at 29, the rod 17 is shouldered below the fingers 27. The construction therefore, is such that when the rod 17 is elevated, the iingers 27 will be elevated off the levers 26. When, however, the rod 17 descends, the springs 28 will expand, holding the fingers 27 in contact with the levers 26. From the foregoing it will be observed that the fingers 27 and the levers 26 constitute switch members affording a make and break mechanism whereby the successive charges in the cylinders 1 and 2 may be ignited, any suitable spark plug mechanism and corresponding parts being resorted to as is common and well known in the art.

The inner ends of the levers 2G are pivoted to links which, in their turn, are pivoted to a walking beam 31, supported intermediate its ends upon the upper cylinderl 1 as indicated at Secured to and upstanding from the walking beam 31 is a handle adapted to be engaged by a ment 34 which is secured to the upper cylinder 1.

Secured to the shaft 7 an expansible, spring retracted wheel 35 adapted to eoact with a shoe 36 secured to the lower end of a governor rod 37 mounted to slide in brackets 38 which are secured to the lower cylinder' 2. A compression spring 39 is interposed between one bracket 38 and the shoe 36 to effect a depression of' the shoe and to cause the shoe to coperate with the expansible wheel 35.

Extended between the cylinders 1 and 2 is a pipe 40 whereby the explosive mixture is conveyed to the cylinders. lnterposed in the pipe 40 are valves 41 which open, respectively toward the cylinders 1 and 2. Connected with the pipe 40 intern'lediate its ends as shown in Fig. 4 is a tubular mixing chamber 42 the inner end of which is counterbored as indicated at 43 adjacent the pipe 40. Projecting into the mixing chamber' 42 is a gasolene inlet pipe 44, provided with a seat 45, adapted to be engaged by a needle valve 4G threaded into one end of the mixing chamber 42. The mixing chamber 42 is supplied with a depending air inlet pipe 47 in which is journaled for rotation an air control valve 48. Secured to the outer end of the needle valve 46 is an arm 49 united pivotally by means of a link 50 with the governor rod 37. The outer end of the air control valve 48 is providedwith an arm 51 which is pivoted to a link 100, the latter being pivoted to the upper end of the rod 37.

The invention further includes a tank 52 located adjacent the lower cylinder 2 and adapted to contain air under pressure An upright pipe 53 is located above the air tank 52 and connects therewith, the pipe 53 being provided with a branch 54 which enters the upper cylinder 1. The pipe 53 is further provided with a branch which enters the lower cylinder 2. end, the pipe 53 may be equipped with a vent 56 controlled by a valve 57. At the pointwhere the branch. 54 enters the pipe 53 there is placed a rotary valve 58, a similar rotary valve 59 being located at the juncture between the branch 55 and the pipe 53. The stems of the valves 58 and 59 are equipped with cranks 60 and the cranks At its upper are connected pivotally by a rod 61, the upper end of which upstands to afford a handle 62.

When the shaft 7 is rotated, the eccentric 19 thereon, coperating with the strap 18, will eii'ect a raising and lowering of the rod 17 in the guides 16. As the rod 17 is raised and lowered, the arms 24 will coperate alternately with the valves 22 and 23, thus opening the exhaust ports 20 and 21 of the cylinders .1 and 2. 1When the rod 17 reciprocates, the lingers 27 will have make and break relation with respect to the levers 26, as hereinbefore set forth, explosions in the cylinders 1 and 2 being thereby effected. [is hereinbeiore set forth, the explosions may be timed by moving' the handle 33 upon l the segment thereby tilting the levers 2G through the medium of the walkingV beam 31 and the links 30.

Should the engine begin to race, the wheel 35 which is carried by the shaft 7 will expand, coacting with the shoeV 36 and effecting a raising of the governor rod 37. lVhen the governor rod 37 is raised, the link 50, coacting with the arm 49, will cause a rotation of the threaded needle valve 46, the same approaching or entering the seat 45, in the gasolene inlet pipe 44. At the same time, the rod 37 through the medium of the link 100 and the arm 51 will rock the valve 48 which is located in the air inlet pipe 47, thereby controlling the air supply. 1n this manner, the speed of the engine will be accurately and positively governed.

Through the medium of the handle 62, the rod 61 may be actuated, the same operating the cranks 60, and controllingthe valves 58 and 59 in the pipe 53, connection being thus established between the pressure tank 52 and the cylinders 1 and 2, through the branches 54 and 55 respectively. The operation above described affects the character of the explosive mixture, at any desired time. Further, the air under pressure, contained in the. tank 52 may be used to start the engine, cranking being unnecessary.

The explosion chamber of the upper cylinder 1 is located at the lower end thereof, the explosion chamber of the cylinder 2 being at the upper end of the said cylinder. By this construction, the crank 9 is subjected to equal pressure upon opposite sides of the crank shaft 7 and the engine will operate without jar and as effectively as an engine employing steam.

Obviously, the tank 52 may be pumped up from the cylinders 1 and 2. Y

This application discloses matter divided out of my co-pending application, Serial No. 749,041.

Having thus described theV invention, what is claimed is 1. 1n an internal combustion engine, a frame; a shaft journaled in the frame; an

expansible wheel carried by the shaft; a movably mounted plunger coacting with the expansible wheel; a mixing chamber; an air supply for the mixing chamber; a fuel supply for themixing chamber; Valves controlling the air supply and the fuel supply; and means for operatively connecting the Valves with the plunger.

2. In an internal combustion engine, a frame; a shaft journaled for rotation in the frame; an expansible wheel mounted on the shaft; a movably supported plunger coacting with the expansible wheel; a mixing chamber; a rotary fuel controlling valve journaled in the mixing chamber; a rotary air controlling valve coacting with the mixing chamber; and means for connecting the valves with the plunger.

3. n an internal combustion engine, connected cylinders; a piston structure operating in the cylinder; a pipe extended between the cylinders; a casing interposed in the pipe; an air supply for the casing; a fuel supply for the casing; valves controlling the air supply and the fuel supply; a bracket on one cylinder; a rod slidable in the bracket and having a shoe; a spring interposed between the bracket and the shoe; means for connecting the rod with the valves; a shaft operatively connected with the piston structure; and an expansible wheel on the shaft and coacting with the shoe.

4. ln an internal combustion engine, a pair of cylinders; a communication therebetween a mixing chamber coperating with the communication; a fuel supply in said mixing chamber; an air supply for the mixing chamber; a Valve cooperating with the fuel supply; a valve cooperating with the air supply; a crank shaft; and means under the control of the crank shaft for actuating both valves.

In testimony that I claim the foregoing` FREDERICK E. RUPRGHT.

Witnesses:

SEDGEWIGK E. HOPKINS, FRANC C. GANNETT.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, 1). C. I 

